Home / 7,905.45-10,911.69-4,548.63

Finding the Fourth Proportional to 7,905.45, 10,911.69 and 4,548.63

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Solution

The fourth proportional to 7,905.45, 10,911.69 and 4,548.63 is: 6,278.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,905.45 : 10,911.69 = 4,548.63 : x
  2. Step 2: Convert to fraction form
    7,905.45/10,911.69 = 4,548.63/x
  3. Step 3: Cross multiply
    7,905.45x = 10,911.69 × 4,548.63
  4. Step 4: Simplify right side
    7,905.45x = 49,633,240.48
  5. Step 5: Solve for x
    x = 49,633,240.48/7,905.45
  6. Step 6: Final answer
    x = 6,278.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.